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— Supra Monaural Noise-Canceling (NC) — Same as above with
noise-canceling microphone that reduces background noise transmission
by up to 75 percent.
— Supra Binaural — Sound in both ears.
— Supra Binaural Noise-Canceling (NC) — Same as above with
noise-canceling microphone on flexible boom; features windscreen and
reduces background noise transmission by up to 75 percent.
Note: For direct connection to the Headset jack on the 6416D+M and
6424D+M, use the following cord: HIC-01; Comcode: 408122950;
PEC: 3124-IC/A.
Using the Softkeys
The softkeys are the four unlabeled round keys located directly below the
display. The four round display control buttons, labeled Menu, Exit, Prev, and
Next are located under the softkeys. See Figure 4.
FIGURE 4 The Display, Softkeys, and Display Control Buttons
Using the Softkey Feature Menus
There are three separate softkey feature menus. Each of these menus allows
you to select from four different features.
You can enter Softkey Mode (and view the softkey feature menu) by pressing
the display control button labeled Menu. The following is an example of a
softkey feature menu.
Softkeys
Display
Display
NextPrevMenu Exit
control buttons
Dir Drop HFAns Timer